For farming communities to have food security, economic success, and environmental protection, it is crucial to promote agricultural sustainability. When it comes to providing financial services that assist agricultural sustainability, nationalised banks are essential due to their vast reach and government mission. The role of nationalised banks in ensuring the long-term viability of rural communities is examined in this case study. This research delves into the tactics, processes, and consequences of nationalised banks' assistance in fostering sustainable agriculture by using empirical data, case studies, and policy analyses. It delves into the ways in which nationalised banks make it easier for farmers to get the loans, insurance, and other financial services they need to implement environmentally friendly agricultural methods, invest in new technologies, and lessen their impact on the environment.